Question
how do you increase the performance of mappings?
Answers
Use single pass read(use one source qualifier instead of multiple SO for same table) Minimize data type conversion (Integer to Decimal again back to Integer) Optimize transformation(when you use Lookup, aggregator, filter, rank and joiner).

Use caches for lookup Aggregator use presorted port, increase cache size, minimize input/out port as much as possible Use Filter wherever possible to avoid unnecessary data flow.   Your Comment




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